Results 71 to 80 of about 609,404 (233)
The effects of material combination and surface roughness in lubricated silicon nitride/steel rolling contact fatigue [PDF]
, 2003 Four kinds of commercially finished 12.7 min HIPed silicon nitride bearing balls with surface roughness values R-a ranging from 0.002 to 0.016 mum were tested using a four-ball rolling configuration.
Kang, J +3 more
core +1 more source
Erosion and rolling contact wear mechanisms in silicon nitride hybrid bearings. [PDF]
One remarkable advantage of hybrid bearings over all steel bearings is the elimination of separate oil lubricant system in applications, such as compressors and pumps in refrigeration and air conditioning units.
Karunamurthy, Balamurugan
core +5 more sources
Stochastic stability analysis of ship rolling based on first-passage probability
Zhongguo Jianchuan YanjiuObjectiveParametric rolling is a typical mode of dynamic instability, characterized by strong nonlinear dynamics and random wave excitation forces.International maritime organization (IMO) has issued the "Guidelines for assessment of the second ...
Yaliu LIU +4 more
doaj +1 more source
Advanced Functional Materials, EarlyView.We present a scalable EC/TC hybrid smart window using a DCPE that enables tunable solar modulation (ΔTsol:15–43%), fast electrochromic switching (<90 s), and strong thermal blocking (10–14°C reduction). HPMC improves thermal stability, while an optimized ISL enhances EC performance.
Soyeon Kim +4 more
wiley +1 more source
Applied Sciences, 2018 This paper presents the outcome of a comprehensive experimental program undertaken to study the performance of cellulose pulp and synthetic PVA (polyvinyl alcohol) based fiber-cement composite under both carbonated and non-carbonated curing conditions at
Bundit Kottititum +4 more
doaj +1 more source
Sky‐Directional Radiative Cooling Meta‐Films for Daylighting Windows
Advanced Functional Materials, EarlyView.A geometry‐mediated microprism meta‐film enables transparent, sky‐directional radiative cooling for daylighting windows. By decoupling control of visible transmittance from mid‐infrared emissivity, ground‐emitted heat absorption is suppressed while skyward heat dissipation is enhanced.
Seung‐Ah Yu +7 more
wiley +1 more source
Comprehensive calculation and safety assessment of parametric roll of very large container ship
Zhongguo Jianchuan Yanjiu, 2017 As the significant variation of GM in waves for very large container ships, strict demands are raised for this ship type in the evaluation and safety assessment of parametric roll.
MA Chengyuan +3 more
doaj +1 more source
Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials
Advanced Functional Materials, EarlyView.Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni +4 more
wiley +1 more source
Realization of Rolling Bearing Serialization based on CREO Platform
Jixie chuandong, 2015 For improving interchangeability of bearing product,the method of rolling bearing serializing design is researched under the environment of CREO. The parametric CAD model template of deep groove ball bearing 6208 is designed,and then the structural ...
Qiu Haifei
doaj
Use of simulation modeling in the modernization of the Moscow district transport network for the operation of electric buses [PDF]
E3S Web of ConferencesThe paper presents the development of simulation model of public transportation system of Alekseevsky district of North-Eastern administrative district of Moscow.
Krasnikova Irina +2 more
doaj +1 more source